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$345+ Cheap flights from Illinois to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — FUK
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Illinois to Japan

Cheapest flights from Illinois to Japan
Explore the most affordable flight options available from Illinois to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Air Canada deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/284:05 pmSTL - NRT
1 stop33h 25mAir Canada
Tue 1/136:45 pmNRT - STL
2 stops35h 44mAir Canada
Deal found 12/11$891
This Mytrip deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:09 pmORD - NRT
1 stop26h 11mMultiple Airlines
Wed 4/110:30 amNRT - ORD
1 stop17h 54mMultiple Airlines
Deal found 12/9$948
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 amORD - NRT
Nonstop13h 30mUnited Airlines
Wed 1/145:05 pmNRT - ORD
Nonstop11h 45mUnited Airlines
Deal found 12/10$951
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:25 pmORD - HND
Nonstop13h 40mUnited Airlines
Wed 1/146:25 pmHND - ORD
1 stop17h 41mUnited Airlines
Deal found 12/10$960
This United Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:25 pmORD - HND
Nonstop13h 40mUnited Airlines
Wed 4/15:15 pmHND - ORD
Nonstop12h 00mUnited Airlines
Deal found 12/9$1,000
This oojo deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:20 amORD - NRT
Nonstop13h 20mJapan Airlines
Wed 1/145:00 pmNRT - ORD
Nonstop11h 45mJapan Airlines
Deal found 12/11$1,007
This United Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 amORD - NRT
Nonstop13h 30mUnited Airlines
Wed 4/14:45 pmNRT - ORD
1 stop17h 40mUnited Airlines
Deal found 12/9$1,011
This Booking.com deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:55 amSTL - NRT
2 stops39h 35mAir Canada
Tue 12/306:15 pmNRT - STL
2 stops59h 11mAir Canada
Deal found 12/9$1,032
This Cheapflightsfares deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:25 pmORD - HND
Nonstop13h 40mANA
Wed 1/146:20 pmHND - ORD
Nonstop11h 50mANA
Deal found 12/11$1,034
This Cheapflightsfares deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:30 amORD - NRT
Nonstop13h 30mANA
Wed 1/145:05 pmNRT - ORD
Nonstop11h 45mANA
Deal found 12/11$1,035
This FlightHub deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/298:51 amORD - HND
1 stop16h 59mANA
Wed 1/146:20 pmHND - ORD
Nonstop11h 50mANA
Deal found 12/11$1,053
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:10 pmORD - HND
Nonstop13h 35mUnited Airlines
Mon 1/124:50 pmHND - ORD
1 stop16h 47mUnited Airlines
Deal found 12/10$1,060

Find flight deals from Illinois to Japan

Keep the following information in mind while searching for Illinois to Japan flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$640
(Air Canada)

One-way from

$345
(Air Canada)

Popular in

June

Cheapest in

September

Average price

$1,695

Good round-trip deal

$945 or less

Good one-way deal

$497 or less
Provider with most accurate pricing for Chicago (CHI)-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tokyo (TYO) flights.
Search Deals
From Illinois to Japan
Search Deals
One-way flight from Illinois to Japan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($238 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Japan.
Search Deals
Price to beat on a one-way flight from Illinois to Japan.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Illinois to Japan that are best for you.

Fly from

Illinois

Fly to

Japan

Route

Depart

Return

Price

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sun 2/15

6:45 pm-4:40 pm

2 stops30h 55m

Tokyo Haneda

Wed 2/25

6:50 pm-3:29 pm

1 stop35h 39m

$640

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Sun 2/15

4:05 pm-4:30 pm

1 stop33h 25m

Tokyo Narita

Wed 2/25

6:45 pm-3:29 pm

1 stop35h 44m

$641

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/9

4:05 pm-4:20 pm

2 stops33h 15m

Tokyo Narita

Fri 2/27

6:45 pm-3:29 pm

1 stop35h 44m

$641

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

4:05 pm-4:40 pm

1 stop33h 35m

Tokyo Haneda

Fri 2/27

6:50 pm-10:36 am

2 stops30h 46m

$655

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 2/2

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Fri 2/6

6:30 pm-10:46 pm

1 stop19h 16m

$678

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Mon 1/26

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Wed 2/4

6:30 pm-1:54 pm

1 stop34h 24m

$686

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 1/20

2:50 pm-4:00 pm

1 stop34h 10m

Tokyo Narita

Tue 1/27

6:30 pm-1:54 pm

1 stop34h 24m

$686

St. LouisTokyo

STL - NRT

STLNRT

Lambert-St Louis

Tue 1/20

11:20 am-4:20 pm

2 stops38h 00m

Tokyo Narita

Tue 1/27

6:45 pm-3:29 pm

2 stops35h 44m

$694

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Mon 2/9

6:30 am-5:45 pm

1 stop20h 15m

Tokyo Haneda

Fri 2/27

6:20 pm-9:05 pm

1 stop17h 45m

$697

St. LouisTokyo

STL - HND

STLHND

Lambert-St Louis

Sat 2/28

8:30 am-4:50 pm

1 stop17h 20m

Tokyo Haneda

Tue 3/10

6:25 pm-11:51 pm

1 stop19h 26m

$698

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Japan

What is the cheapest month to book a flight from Illinois to Japan?

Currently, August is the cheapest month in which you can book a flight from Illinois to Japan (average of $543). Flying from Illinois to Japan in December is currently the most expensive (average of $1,002). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to JP?

Find hourly flight availability from Illinois to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

One of the essential ways to save on airfare from Illinois to Japan is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 21% on airfare.

What is the cheapest day to fly from Illinois to Japan?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Japan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Japan flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Japan?

    There are many flights that can get you from Illinois to Japan in 20h 15m. Fly via Air Canada, United Airlines, or Cathay Pacific to get the fastest option. Illinois and Japan are separated by a distance of 6383 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Japan one-way?

    One-way options have recently been found by users for as low as $95 on Frontier. Other airlines that offer cheap prices include American Airlines from $109 and Southwest from $130 one-way.

  • Can I find deals for flights from Illinois to Japan that include hotel bookings?

    Yes. In addition to deals on Illinois to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Japan.

  • Can I find deals for business class flights from Illinois to Japan?

    Yes. Cheapflights offers flight deals from Illinois to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Japan?

    Currently, August is the cheapest month in which you can book a flight from Illinois to Japan (average of $543). Flying from Illinois to Japan in December is currently the most expensive (average of $1,002). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Japan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Illinois to Japan

Discover the top 9 airlines that operate flights from Illinois to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$318Average$1,320FlexibilityNo cancel feeOn-timeN/A
EVA AirCheapest$648Average$1,360FlexibilityNo cancel feeOn-time74%
Cathay PacificCheapest$709Average$934FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$781Average$1,503FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$824Average$1,185FlexibilityNo cancel feeOn-time67%
Hawaiian AirlinesCheapest$880Average$891FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$1,010Average$1,782FlexibilityNo cancel feeOn-time71%
ANACheapest$1,092Average$1,651FlexibilityNo cancel feeOn-time80%
Japan AirlinesCheapest$1,109Average$1,637FlexibilityNo cancel feeOn-time79%

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